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I've solved the why as to my problem now I only need to work a solution! I can do that, but I was wondering if anybody could give any input on what the right solution would be. The issue stems from the fact that my build process works like this: (I am using slightly modified gentoo ebuilds throught) 1. emerge cross-arm-iwmmxt-linux-gnueabi/binutils-9999_<snapshot_date> (modified just to allow for --sysroot) 2. emerge cross-arm-iwmmxt-linux-gnueabi/gcc *stage1 compiler* (modified to account for iwmmxt,-sysroot etc including custom patches) 3. emerge cross-arm-iwmmxt-linux-gnueabi/linux-headers (works out of the box with current 2.6.16 ebuild) 4. emerge cross-arm-iwmmxt-linux-gnueabi/glibc [USE=_E_CROSS_HEADERS_ONLY] (modified for iwmmxt and pulling current snapshot) 5. re-emerge cross-arm-iwmmxt-linux-gnueabi/gcc *produces stage2 compiler* 6. re-emerge cross-arm-iwmmxt-linux-gnueabi/glibc *glibc with static toolchain* 7. re-emerge cross-arm-iwmmxt-linux-gnueabi/gcc *final compiler c++ etc* 8. re-emerge cross-arm-iwmmxt-linux-gnueabi/glibc *glibc with dynamic toolchain* Stage 8 fails due to a bug in the glibc build process. See: http://gcc.gnu.org/ml/gcc-patches/2005-02/msg00532.html What happens is when building glibc --enable-shared with from a toolchain previously built with --disable-shared the build process only links in libgcc and not in libgcc_eh where the missing symbols are defined. --- Steven Newbury <s_j_newbury@yahoo.co.uk> wrote: > --- Steven Newbury <s_j_newbury@yahoo.co.uk> wrote: > > > > > > --- Khem Raj <khem@mvista.com> wrote: > > > > > > > Steven Newbury said the following on 04/12/2006 12:19 PM: > > > > >> Looking back at the work I'd done to get it all working I realised > > that > > > I > > > > had > > > > >> it working at one point! I actually broke it when I was cleaning my > > > > patches > > > > >> up. > > > > >> I'll give more details in a later post. > > > > >> > > > > >> > > > > > Can anybody help me here? I am missing the unwind symbols from > libgcc > > > when > > > > > glibc attempts to link for the final time. I cannot understand why. > > > > UNWIND_H > > > > > is being set to arm/unwind-arm.h and config.gcc is including t-bpapi. > > > > > > > > > > I can post my patches if it helps, but somebody must know how this > all > > > fits > > > > together.. > > > > > > > > > > > > > > While configuring the gcc which you will use to build glibc you should > > > > use this configure option--disable-libunwind-exceptions (assuming you > > > > are using GCC 4.1) > > > > and set libc_cv_forced_unwind=yes in config.cache while building glibc. > > > > > > > > Hope that helps > > > > > > > Thanks, --disable-libunwind-exceptions got removed when I was trying 4.2. > > > > Hopefully that's it! Building now, fingers crossed! > > > > > Nope that's not it. > > > This is a better build output, previously it was built with -j3: > > arm-iwmmxt-linux-gnueabi-gcc -nostdlib -nostartfiles -static -o > /var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/elf/sln > > /var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/csu/crt1.o > /var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/csu/crti.o > `arm-iwmmxt-linux-gnueabi-gcc --print-file-name=crtbegin.o` > /var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/elf/sln.o > > /var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/libc.a > -lgcc > /var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/libc.a > `arm-iwmmxt-linux-gnueabi-gcc --print-file-name=crtend.o` > /var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/csu/crtn.o > /var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/libc.a(libc-start.o):(.ARM.exidx+0x0): > undefined reference to `__aeabi_unwind_cpp_pr0' > /var/tmp/portage/glibc-20060410/work/build-default-arm-iwmmxt-linux-gnueabi-nptl/libc.a(iofclose.o):(.ARM.exidx+0x0): > undefined reference to `__aeabi_unwind_cpp_pr0' > > ... > > This continues for every object in libc.a that references the unwind > > functions > > including _Unwind_Resume. > > I have attached my current gcc patch. > > Steve > > > > ___________________________________________________________ > Switch an email account to Yahoo! Mail, you could win FIFA World Cup tickets. http://uk.mail.yahoo.com Steve ___________________________________________________________ 24 FIFA World Cup tickets to be won with Yahoo! Mail http://uk.mail.yahoo.com -- For unsubscribe information see http://sourceware.org/lists.html#faq
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